345543211 has 16 divisors (see below), whose sum is σ = 376911360. Its totient is φ = 314889120.

The previous prime is 345543167. The next prime is 345543221. The reversal of 345543211 is 112345543.

It is not a de Polignac number, because 345543211 - 2⁷ = 345543083 is a prime.

It is a super-2 number, since 2×345543211² = 238800221336381042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345543211.

It is not an unprimeable number, because it can be changed into a prime (345543221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378846 + ... + 379756.

It is an arithmetic number, because the mean of its divisors is an integer number (23556960).

Almost surely, 2^345543211 is an apocalyptic number.

345543211 is a deficient number, since it is larger than the sum of its proper divisors (31368149).

345543211 is a wasteful number, since it uses less digits than its factorization.

345543211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266.

The product of its digits is 7200, while the sum is 28.

The square root of 345543211 is about 18588.7926181342. The cubic root of 345543211 is about 701.7258170925.

Adding to 345543211 its reverse (112345543), we get a palindrome (457888754).

The spelling of 345543211 in words is "three hundred forty-five million, five hundred forty-three thousand, two hundred eleven".